diff options
Diffstat (limited to 'node_modules/mdurl/build/index.cjs.js')
| -rw-r--r-- | node_modules/mdurl/build/index.cjs.js | 534 |
1 files changed, 534 insertions, 0 deletions
diff --git a/node_modules/mdurl/build/index.cjs.js b/node_modules/mdurl/build/index.cjs.js new file mode 100644 index 0000000..bfa6f01 --- /dev/null +++ b/node_modules/mdurl/build/index.cjs.js @@ -0,0 +1,534 @@ +'use strict'; + +/* eslint-disable no-bitwise */ + +const decodeCache = {}; + +function getDecodeCache (exclude) { + let cache = decodeCache[exclude]; + if (cache) { return cache } + + cache = decodeCache[exclude] = []; + + for (let i = 0; i < 128; i++) { + const ch = String.fromCharCode(i); + cache.push(ch); + } + + for (let i = 0; i < exclude.length; i++) { + const ch = exclude.charCodeAt(i); + cache[ch] = '%' + ('0' + ch.toString(16).toUpperCase()).slice(-2); + } + + return cache +} + +// Decode percent-encoded string. +// +function decode (string, exclude) { + if (typeof exclude !== 'string') { + exclude = decode.defaultChars; + } + + const cache = getDecodeCache(exclude); + + return string.replace(/(%[a-f0-9]{2})+/gi, function (seq) { + let result = ''; + + for (let i = 0, l = seq.length; i < l; i += 3) { + const b1 = parseInt(seq.slice(i + 1, i + 3), 16); + + if (b1 < 0x80) { + result += cache[b1]; + continue + } + + if ((b1 & 0xE0) === 0xC0 && (i + 3 < l)) { + // 110xxxxx 10xxxxxx + const b2 = parseInt(seq.slice(i + 4, i + 6), 16); + + if ((b2 & 0xC0) === 0x80) { + const chr = ((b1 << 6) & 0x7C0) | (b2 & 0x3F); + + if (chr < 0x80) { + result += '\ufffd\ufffd'; + } else { + result += String.fromCharCode(chr); + } + + i += 3; + continue + } + } + + if ((b1 & 0xF0) === 0xE0 && (i + 6 < l)) { + // 1110xxxx 10xxxxxx 10xxxxxx + const b2 = parseInt(seq.slice(i + 4, i + 6), 16); + const b3 = parseInt(seq.slice(i + 7, i + 9), 16); + + if ((b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) { + const chr = ((b1 << 12) & 0xF000) | ((b2 << 6) & 0xFC0) | (b3 & 0x3F); + + if (chr < 0x800 || (chr >= 0xD800 && chr <= 0xDFFF)) { + result += '\ufffd\ufffd\ufffd'; + } else { + result += String.fromCharCode(chr); + } + + i += 6; + continue + } + } + + if ((b1 & 0xF8) === 0xF0 && (i + 9 < l)) { + // 111110xx 10xxxxxx 10xxxxxx 10xxxxxx + const b2 = parseInt(seq.slice(i + 4, i + 6), 16); + const b3 = parseInt(seq.slice(i + 7, i + 9), 16); + const b4 = parseInt(seq.slice(i + 10, i + 12), 16); + + if ((b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80 && (b4 & 0xC0) === 0x80) { + let chr = ((b1 << 18) & 0x1C0000) | ((b2 << 12) & 0x3F000) | ((b3 << 6) & 0xFC0) | (b4 & 0x3F); + + if (chr < 0x10000 || chr > 0x10FFFF) { + result += '\ufffd\ufffd\ufffd\ufffd'; + } else { + chr -= 0x10000; + result += String.fromCharCode(0xD800 + (chr >> 10), 0xDC00 + (chr & 0x3FF)); + } + + i += 9; + continue + } + } + + result += '\ufffd'; + } + + return result + }) +} + +decode.defaultChars = ';/?:@&=+$,#'; +decode.componentChars = ''; + +const encodeCache = {}; + +// Create a lookup array where anything but characters in `chars` string +// and alphanumeric chars is percent-encoded. +// +function getEncodeCache (exclude) { + let cache = encodeCache[exclude]; + if (cache) { return cache } + + cache = encodeCache[exclude] = []; + + for (let i = 0; i < 128; i++) { + const ch = String.fromCharCode(i); + + if (/^[0-9a-z]$/i.test(ch)) { + // always allow unencoded alphanumeric characters + cache.push(ch); + } else { + cache.push('%' + ('0' + i.toString(16).toUpperCase()).slice(-2)); + } + } + + for (let i = 0; i < exclude.length; i++) { + cache[exclude.charCodeAt(i)] = exclude[i]; + } + + return cache +} + +// Encode unsafe characters with percent-encoding, skipping already +// encoded sequences. +// +// - string - string to encode +// - exclude - list of characters to ignore (in addition to a-zA-Z0-9) +// - keepEscaped - don't encode '%' in a correct escape sequence (default: true) +// +function encode (string, exclude, keepEscaped) { + if (typeof exclude !== 'string') { + // encode(string, keepEscaped) + keepEscaped = exclude; + exclude = encode.defaultChars; + } + + if (typeof keepEscaped === 'undefined') { + keepEscaped = true; + } + + const cache = getEncodeCache(exclude); + let result = ''; + + for (let i = 0, l = string.length; i < l; i++) { + const code = string.charCodeAt(i); + + if (keepEscaped && code === 0x25 /* % */ && i + 2 < l) { + if (/^[0-9a-f]{2}$/i.test(string.slice(i + 1, i + 3))) { + result += string.slice(i, i + 3); + i += 2; + continue + } + } + + if (code < 128) { + result += cache[code]; + continue + } + + if (code >= 0xD800 && code <= 0xDFFF) { + if (code >= 0xD800 && code <= 0xDBFF && i + 1 < l) { + const nextCode = string.charCodeAt(i + 1); + if (nextCode >= 0xDC00 && nextCode <= 0xDFFF) { + result += encodeURIComponent(string[i] + string[i + 1]); + i++; + continue + } + } + result += '%EF%BF%BD'; + continue + } + + result += encodeURIComponent(string[i]); + } + + return result +} + +encode.defaultChars = ";/?:@&=+$,-_.!~*'()#"; +encode.componentChars = "-_.!~*'()"; + +function format (url) { + let result = ''; + + result += url.protocol || ''; + result += url.slashes ? '//' : ''; + result += url.auth ? url.auth + '@' : ''; + + if (url.hostname && url.hostname.indexOf(':') !== -1) { + // ipv6 address + result += '[' + url.hostname + ']'; + } else { + result += url.hostname || ''; + } + + result += url.port ? ':' + url.port : ''; + result += url.pathname || ''; + result += url.search || ''; + result += url.hash || ''; + + return result +} + +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// +// Changes from joyent/node: +// +// 1. No leading slash in paths, +// e.g. in `url.parse('http://foo?bar')` pathname is ``, not `/` +// +// 2. Backslashes are not replaced with slashes, +// so `http:\\example.org\` is treated like a relative path +// +// 3. Trailing colon is treated like a part of the path, +// i.e. in `http://example.org:foo` pathname is `:foo` +// +// 4. Nothing is URL-encoded in the resulting object, +// (in joyent/node some chars in auth and paths are encoded) +// +// 5. `url.parse()` does not have `parseQueryString` argument +// +// 6. Removed extraneous result properties: `host`, `path`, `query`, etc., +// which can be constructed using other parts of the url. +// + +function Url () { + this.protocol = null; + this.slashes = null; + this.auth = null; + this.port = null; + this.hostname = null; + this.hash = null; + this.search = null; + this.pathname = null; +} + +// Reference: RFC 3986, RFC 1808, RFC 2396 + +// define these here so at least they only have to be +// compiled once on the first module load. +const protocolPattern = /^([a-z0-9.+-]+:)/i; +const portPattern = /:[0-9]*$/; + +// Special case for a simple path URL +/* eslint-disable-next-line no-useless-escape */ +const simplePathPattern = /^(\/\/?(?!\/)[^\?\s]*)(\?[^\s]*)?$/; + +// RFC 2396: characters reserved for delimiting URLs. +// We actually just auto-escape these. +const delims = ['<', '>', '"', '`', ' ', '\r', '\n', '\t']; + +// RFC 2396: characters not allowed for various reasons. +const unwise = ['{', '}', '|', '\\', '^', '`'].concat(delims); + +// Allowed by RFCs, but cause of XSS attacks. Always escape these. +const autoEscape = ['\''].concat(unwise); +// Characters that are never ever allowed in a hostname. +// Note that any invalid chars are also handled, but these +// are the ones that are *expected* to be seen, so we fast-path +// them. +const nonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape); +const hostEndingChars = ['/', '?', '#']; +const hostnameMaxLen = 255; +const hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/; +const hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/; +// protocols that can allow "unsafe" and "unwise" chars. +// protocols that never have a hostname. +const hostlessProtocol = { + javascript: true, + 'javascript:': true +}; +// protocols that always contain a // bit. +const slashedProtocol = { + http: true, + https: true, + ftp: true, + gopher: true, + file: true, + 'http:': true, + 'https:': true, + 'ftp:': true, + 'gopher:': true, + 'file:': true +}; + +function urlParse (url, slashesDenoteHost) { + if (url && url instanceof Url) return url + + const u = new Url(); + u.parse(url, slashesDenoteHost); + return u +} + +Url.prototype.parse = function (url, slashesDenoteHost) { + let lowerProto, hec, slashes; + let rest = url; + + // trim before proceeding. + // This is to support parse stuff like " http://foo.com \n" + rest = rest.trim(); + + if (!slashesDenoteHost && url.split('#').length === 1) { + // Try fast path regexp + const simplePath = simplePathPattern.exec(rest); + if (simplePath) { + this.pathname = simplePath[1]; + if (simplePath[2]) { + this.search = simplePath[2]; + } + return this + } + } + + let proto = protocolPattern.exec(rest); + if (proto) { + proto = proto[0]; + lowerProto = proto.toLowerCase(); + this.protocol = proto; + rest = rest.substr(proto.length); + } + + // figure out if it's got a host + // user@server is *always* interpreted as a hostname, and url + // resolution will treat //foo/bar as host=foo,path=bar because that's + // how the browser resolves relative URLs. + /* eslint-disable-next-line no-useless-escape */ + if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) { + slashes = rest.substr(0, 2) === '//'; + if (slashes && !(proto && hostlessProtocol[proto])) { + rest = rest.substr(2); + this.slashes = true; + } + } + + if (!hostlessProtocol[proto] && + (slashes || (proto && !slashedProtocol[proto]))) { + // there's a hostname. + // the first instance of /, ?, ;, or # ends the host. + // + // If there is an @ in the hostname, then non-host chars *are* allowed + // to the left of the last @ sign, unless some host-ending character + // comes *before* the @-sign. + // URLs are obnoxious. + // + // ex: + // http://a@b@c/ => user:a@b host:c + // http://a@b?@c => user:a host:c path:/?@c + + // v0.12 TODO(isaacs): This is not quite how Chrome does things. + // Review our test case against browsers more comprehensively. + + // find the first instance of any hostEndingChars + let hostEnd = -1; + for (let i = 0; i < hostEndingChars.length; i++) { + hec = rest.indexOf(hostEndingChars[i]); + if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) { + hostEnd = hec; + } + } + + // at this point, either we have an explicit point where the + // auth portion cannot go past, or the last @ char is the decider. + let auth, atSign; + if (hostEnd === -1) { + // atSign can be anywhere. + atSign = rest.lastIndexOf('@'); + } else { + // atSign must be in auth portion. + // http://a@b/c@d => host:b auth:a path:/c@d + atSign = rest.lastIndexOf('@', hostEnd); + } + + // Now we have a portion which is definitely the auth. + // Pull that off. + if (atSign !== -1) { + auth = rest.slice(0, atSign); + rest = rest.slice(atSign + 1); + this.auth = auth; + } + + // the host is the remaining to the left of the first non-host char + hostEnd = -1; + for (let i = 0; i < nonHostChars.length; i++) { + hec = rest.indexOf(nonHostChars[i]); + if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) { + hostEnd = hec; + } + } + // if we still have not hit it, then the entire thing is a host. + if (hostEnd === -1) { + hostEnd = rest.length; + } + + if (rest[hostEnd - 1] === ':') { hostEnd--; } + const host = rest.slice(0, hostEnd); + rest = rest.slice(hostEnd); + + // pull out port. + this.parseHost(host); + + // we've indicated that there is a hostname, + // so even if it's empty, it has to be present. + this.hostname = this.hostname || ''; + + // if hostname begins with [ and ends with ] + // assume that it's an IPv6 address. + const ipv6Hostname = this.hostname[0] === '[' && + this.hostname[this.hostname.length - 1] === ']'; + + // validate a little. + if (!ipv6Hostname) { + const hostparts = this.hostname.split(/\./); + for (let i = 0, l = hostparts.length; i < l; i++) { + const part = hostparts[i]; + if (!part) { continue } + if (!part.match(hostnamePartPattern)) { + let newpart = ''; + for (let j = 0, k = part.length; j < k; j++) { + if (part.charCodeAt(j) > 127) { + // we replace non-ASCII char with a temporary placeholder + // we need this to make sure size of hostname is not + // broken by replacing non-ASCII by nothing + newpart += 'x'; + } else { + newpart += part[j]; + } + } + // we test again with ASCII char only + if (!newpart.match(hostnamePartPattern)) { + const validParts = hostparts.slice(0, i); + const notHost = hostparts.slice(i + 1); + const bit = part.match(hostnamePartStart); + if (bit) { + validParts.push(bit[1]); + notHost.unshift(bit[2]); + } + if (notHost.length) { + rest = notHost.join('.') + rest; + } + this.hostname = validParts.join('.'); + break + } + } + } + } + + if (this.hostname.length > hostnameMaxLen) { + this.hostname = ''; + } + + // strip [ and ] from the hostname + // the host field still retains them, though + if (ipv6Hostname) { + this.hostname = this.hostname.substr(1, this.hostname.length - 2); + } + } + + // chop off from the tail first. + const hash = rest.indexOf('#'); + if (hash !== -1) { + // got a fragment string. + this.hash = rest.substr(hash); + rest = rest.slice(0, hash); + } + const qm = rest.indexOf('?'); + if (qm !== -1) { + this.search = rest.substr(qm); + rest = rest.slice(0, qm); + } + if (rest) { this.pathname = rest; } + if (slashedProtocol[lowerProto] && + this.hostname && !this.pathname) { + this.pathname = ''; + } + + return this +}; + +Url.prototype.parseHost = function (host) { + let port = portPattern.exec(host); + if (port) { + port = port[0]; + if (port !== ':') { + this.port = port.substr(1); + } + host = host.substr(0, host.length - port.length); + } + if (host) { this.hostname = host; } +}; + +exports.decode = decode; +exports.encode = encode; +exports.format = format; +exports.parse = urlParse; |